> ## Documentation Index
> Fetch the complete documentation index at: https://platform.tatango.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Invalid Phone

> This webhook is called when a phone number is determined to be invalid during validation.



## OpenAPI

````yaml webhook invalid_phone
openapi: 3.1.0
info:
  title: Tatango API
  description: Tatango API for messaging services including WhatsApp, SMS, and MMS
  version: 1.0.0
servers:
  - url: https://api.v3.tatango.com
security:
  - apiKeyAuth: []
paths: {}
components:
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: >-
        Your Tatango API key. This is required for all requests to the API. You
        can find your API key in the Tatango App under My Account -> API ->
        Create API Key.

````